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(a) Such tanks shall not be located on or within 20 feet of combustible floors. Such tanks shall not be closer than 20 feet for a furnace or other open-flame heating device, torch or other heat-producing device.
(b) Such tanks shall be provided with noncombustible hood and vent, and vented directly to the outside of the building and shall otherwise comply with the requirements of Chapter 13-176 . Such vents and hood shall not be closer than 18 inches to any combustible materials.
(c) Each such tank shall be equipped with a high temperature limit switch so arranged to sound a suitable audible alarm when the temperature of the quenching medium reaches 50 degrees below the flashpoint.
(d) Such tanks having a capacity of over 500 gallons or having a liquid surface area of 25 square feet or more shall be protected as specified in Section 15-24-790(b) or (c) of this Code.
(e) Air under pressure shall not be used to fill or to agitate the quenching medium in the tanks.
(Prior code § 129.1-72)
Notes
| 13-176 | The hyper-linked material is not part of the Chicago Building Code infobase and therefore is not included herein. The material is included in other provisions of the Chicago Municipal Code. The complete Chicago Municipal Code is available for purchase from American Legal Publishing in both print and Folio® versions. Please click here for the appropriate American Legal order form in printable Adobe® PDF format. For additional information, you may visit American Legal's website by clicking here. |
Flow coat operations shall comply with the requirements for dip tanks. The area of the sump and any area within 20 feet of the flow coat operations shall be considered the vapor area. Flow coat operations shall also conform to the following specific requirements:
(a) Paint or other flammable liquid shall be supplied by direct low pressure pumping arranged to automatically shut down by means of approved heat- actuated devices in the event of a fire.
(Prior code § 129.1-73)
Roll coating operations shall comply with the following provisions and the other applicable requirements of the code:
(a) The processes of roll coating, spreading and impregnating in which fabrics, paper or other material is passed directly through a dip tank or trough containing flammable liquids or over the surface of a roller that revolves partially submerged in a flammable liquid shall conform to the requirements of Sections 15-24-760 to 15-24-800 of this Code.
(b) Adequate arrangements shall be made to prevent sparks from static electricity by electrically bonding and grounding all metallic rotating and other parts of the machinery and equipment and by the installation of static collectors. All such electrical bonding and grounding shall be done in strict accordance with the provisions of Title 14E.
(Prior code § 129.1-74; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 58)
ARTICLE VIII. DRYING APPARATUS (15-24-840 et seq.)
Every room for the drying of articles or materials, which will give off explosives or flammable vapors during the drying process, shall have an enclosure of two-hour fire-resistive construction, if it has a floor area of 1,000 square feet or less and of three-hour fire- resistive construction of solid masonry or concrete if it has a floor area exceeding 1,000 square feet but not more than 2,000 square feet; and of four-hour fire-resistive construction if it has a floor area exceeding 2,000 square feet; provided, however, that an opening, or openings from any adjoining room for a conveyor may be provided in an enclosure for any such drying room if each such adjoining room is made to conform with the requirements of this section for such a drying room; and provided further, that if a system of collecting and disposing of the vapors produced in the drying room is provided, then the enclosure for the drying room shall be not less than one-hour fire- resistive construction in any case, and the provisions of this section for an adjoining room in which there is a conveyor extending into the drying room shall not apply.
(Prior code § 129.1-75)
Section 15-24-840 shall not apply when drying is conducted in a drying device specifically designed for drying articles, which have been coated with a material that gives off explosive vapor during drying. Adequate ventilation shall be provided, which will insure ventilation sufficient to prevent buildup of an explosive mixture. The ventilation system shall be interlocked such that in case of failure of the ventilating system, the drying device will not function. The heating operation shall comply with Chapter 13-180 . The drying operation shall comply with Section 15-24-860. Whenever located adjacent to the spraying operation, preventilation shall occur before the heating system can be started.
(Prior code § 129.1-76)
Notes
| 13-180 | The hyper-linked material is not part of the Chicago Building Code infobase and therefore is not included herein. The material is included in other provisions of the Chicago Municipal Code. The complete Chicago Municipal Code is available for purchase from American Legal Publishing in both print and Folio® versions. Please click here for the appropriate American Legal order form in printable Adobe® PDF format. For additional information, you may visit American Legal's website by clicking here. |
Drying apparatus shall comply with the applicable chapters of this Code and with the special requirements of this section:
(a) Spray booths, spray areas, spray rooms used for spraying operations shall not alternately be used for the purpose of drying by any arrangement which will cause an increase in the surface temperature of the spray booth, spray area, spray room used for spraying operations, except as hereinafter permitted.
(b) Except as specifically provided in Section 15-24-860(c) drying or baking units utilizing a heating system having open flames or which may produce sparks shall not be permitted in any spray booth, spray area, spray room but may be installed adjacent thereto if equipped with an interlocked ventilating system arranged to:
1. Thoroughly ventilate the drying space before the heating system can be started;
2. Maintain a safe atmosphere at any source of ignition;
3. Automatically shut down the heating system in the event of failure of the ventilating system.
(c) Motor vehicles refinishing booths or enclosures, otherwise installed and maintained in conformity with this section, may alternately be used for drying with portable infrared drying apparatus when complying with the following:
1. The procedure shall be restricted to occasional operations using less than ten gallons in any 24-hour period of liquids as defined for paint spraying in Section 15-24-550 of this Code.
2. The interior of spray enclosures shall be kept free of overspray deposits.
3. During the spray operations, the drying apparatus and electrical connections and wiring thereto shall not be located within the spray enclosure nor in any other location where spray residue may be deposited thereon.
4. Spraying apparatus, drying apparatus and ventilating system of the spray enclosure shall be equipped with suitable interlocks so arranged that:
(a) Spraying apparatus cannot be operated while drying apparatus is inside the spray enclosure;
(b) Spray enclosure will be purged of spray vapors for a period of not less than three minutes before drying apparatus can be energized;
(c) The ventilating system will maintain a safe atmosphere within the enclosure during the drying process and the drying apparatus will automatically shut off in the event of failure of the ventilating system.
5. All electrical wiring and equipment of the drying apparatus shall conform to Title 14E. Only equipment of a type approved for Class I, Division 2 hazardous locations, as defined in Section 14E-5-500, shall be located within 18 inches of the floor level. All metallic parts of the drying apparatus shall be properly electrically bonded and grounded.
(Prior code § 129.1-77; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 59)
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